The first unit has been completed. How are the children? I have sorted out three sets of math test papers in Unit 1 of the first volume of the sixth grade of primary school, hoping to help you! The first volume of the sixth grade of primary school Unit 1 Mathematics Examination Paper 1

fill (up) a vacancy

1. A circle has a diameter of 6 cm, a radius of _ _ _ _ _ _ cm, a circumference of _ _ _ _ _ _ cm and an area of _ _ _ _ _ _ _ cm.

2. Circular pool, with a circumference of 25.12m and an area of _ _ _ _ _ _ _ m2.

3. The radius of the circle is enlarged by 3 times, and the area is enlarged by _ _ _ _ _ _ _.

4. The radius of the outer circle of a ring is 6 cm, the radius of the inner circle is 4 cm, and the area of the ring _ _ _ _ _ _ _ _ _ cm2.

5. If the diameter of a circle increases by 1 cm, its circumference increases by _ _ _ cm.

6. If the radius of a circle increases by 1 cm, its circumference increases by _ _ _ cm.

7. The radius of a circle is r, and the circumference of a semi-circle is _ _ _ _ _ _ _ _.

Step 2: Choose

8. The symmetry axis of a circle is ()

A. One article, B. Two articles and C. Countless articles.

9.(20 10? Lu Xian simulation) pi () 3. 14.

A. greater than b equals c less than.

10. When the diameter of the great circle is equal to the sum of the diameters of three small circles (as shown in the figure), the circumference of the great circle () is the sum of the circumferences of the small circles.

A. greater than B. less than C. equal to

1 1. The diameter passes through the center of the circle, and both ends are on the circle ().

A. D broken line of straight line B-ray C line segment

3. Judgment (drawing "√" and painting "×" wrongly) (judging right or wrong)

12. Two semicircles can form a complete circle. _ _ _ _ _ _ _.

13. A circle and a square have the same perimeter and area. _ _ _ _ _ _.

14. The ratio of the circumference to the diameter of a circle is π. _ _ _ _ _ _ _.

15. The ratio of the radius of the big circle to the radius of the small circle is 2: 1, and the ratio of the area of the big circle to the area of the small circle is also 2: 1. _ _ _ _ _ _ _.

16. Pi is a cyclic decimal. _ _ _ _ _ _ _.

Four. calculate

17.R = 5cm，C = _ _ _ _ _ _，S = _ _ _ _ _ _。

18.d = 8cm，r = _ _ _ _，s = _ _ _ _，c = _ _。

19.c = 18.84cm，r = _ _ _ _ _ _ _，s = _ _ _ _ _ _。

20.R = 5 decimeters, S = _ _ _ _ _ _ _

Five,

2 1. Draw a diagram to calculate.

A ring, the diameter of the outer circle is 4 cm, the radius of the inner circle is 1.5 cm, and the area of the ring is _ _ _ _ _ _ _ _.

Practical problems of intransitive verbs

22. A circular desktop with a circumference of 3. 14m. Find the area of the desktop.

23. The radius of the ring inner circle is 2 decimeters, and the ring width is 1 decimeter. Find the annular area. Meter (short for meter))

24. The outer diameter of bicycle wheel is 0.7 1 m.. If you drive at the speed of15km per hour, how many times will the wheels advance? (Numbers are reserved as integers)

25. The area of a square is 10 square meter. What is the area of the inner circle of a square?

26. The circumference of the circular flower bed is 62.8 meters. How much area is left here to cultivate flower seedlings?

27. Find the shadow area and perimeter. (Unit: cm)

28. Calculate the shadow area as shown in the figure. (Unit: cm)

29. A rectangle and a circle have equal perimeters. It is known that the circumference of a circle is 3 1.4 cm and the width and length of a rectangle are 1: 4. How much smaller is the area of a rectangle than that of a circle?

The first volume of the sixth grade of primary school Unit 1 Mathematics Examination Paper 2

Fill in the blanks. (One point for each space, * * * 12 point)

The number of 1.A is, the number of b is less than 3 times that of a, and the number of b is ().

2. A book has 70 pages. Xiao Fang reads several pages every day. He has read it for B days, and there are () pages left.

3. The upper bottom of the trapezoid is centimeters, the lower bottom is b centimeters, the height is x centimeters, and the area is () square centimeters.

4. There are X apple trees in the orchard, and the number of pear trees is five times that of apple trees, 12, and there are pear trees.

() tree.

5. Fill in ""and "=" in ○.

(1) When x =50, 2x-36 2 (x-36)

(2) When x =5, 4x+3x 4+3.

6. The width of a rectangle is x cm, its length is exactly 1.4 times the width, its length is () cm, and its circumference is () cm.

7.56 is 50 times of x, which is expressed by equation ().

8. Yuan per kilogram of rice, B yuan per kilogram of flour, and () yuan to buy 2 kilograms of rice and 3 kilograms of flour.

9. The average of three consecutive natural numbers is x, the smallest of these three numbers is (), and their sum is ().

Second, look at the graphic equation and answer. (4 points for each question, * * * 12 points)

1. The area of the triangle is 100 square centimeter.

3.

X kg

Tomatoes:

27 kg

Chinese cabbage:

Third, solve the equation. (4 points for each question, * * * 16 points)

( 1)8x+6x = 2 10(2)x-0. 1x = 1.08

(3) 12x÷ 16 = 4.32(4)0.8x+4 = 7.2

Fourth, the column equation solves practical problems. (Each question 10, 60 points * * *)

1. In the school interest group, there are 64 people in the calligraphy group, which is three times more than that in the art group.

How many people are there in the art group?

2. The number of short ropes in the school gymnasium is 9 times that of long ropes, and the number of long ropes is 72 less than that of short ropes. Short rope

How many long ropes are there?

Master and apprentice have to process 940 parts at the same time. The master processes 100 pieces per hour, and the apprentice processes 88 pieces per hour. If we start processing at the same time, how many hours will it take to complete?

Teacher Wu made a rectangular teaching aid with 72 cm long wire, which was 20 cm long and 20 cm wide.

How many centimeters?

5. The engineering team built a tunnel with a length of 2 100 meters. At present, 960 meters have been built, and the rest will take 4 days.

How many meters are repaired on average every day after repair?

6. Car A and car B travel in the same direction from the same place. Car A travels 65 kilometers per hour and car B travels 1 kilometer per hour.

Ok, 55 kilometers. How many hours after the departure of the two cars, does the A car travel 200 kilometers more than the B car?

The first volume of the sixth grade of primary school Unit 1 Math Test Paper 3

I. Fill in the blanks (20 points)

1, () determine the position of the circle, () determine the size of the circle.

2. The circumference of a circle is more than () times its diameter. This multiple is a fixed number. We call it (), which is usually represented by the letter (). Is () decimal, take two decimal places is ().

Divide a circle into several parts evenly, and you can spell it into an approximate rectangle. The length of a rectangle is equivalent to a circle () and the width is equivalent to a circle (), so the area of the circle is S= ().

4. Cut a circle on a rectangular cardboard with a length of 8 cm and a width of 5 cm. The area of this circle is () square decimeter.

5. The radius difference between the two circles is 3 cm, the diameter difference is () cm and the circumference difference is () cm.

6. The diameter of circle A is 8 cm, which is the diameter of circle B. The circumference of circle B is ().

7. When drawing a circle, the distance between the compasses is 4 cm, so the diameter of the circle is () cm, the circumference is () cm, and the area is () cm2.

8. A circle is a () figure with a () symmetry axis. A semicircle has a () axis of symmetry.

Second, the judgment (4 points)

1, the diameter is always greater than the radius. ( )

2.π is an infinite acyclic decimal. ( )

3. The circumference of a semicircle is the circumference of a circle divided by 2. ( )

The symmetry axis of a circle is the straight line where the diameter lies. ( )

Three. Choice (5 points)

1, the areas of two circles are not equal, because ().

A, pi is different; B, the position of the center of the circle is different; C, the radius is different.

2, to make the size of the two circles have countless symmetry axes, should adopt the () method.

3. The perimeters of the two circles are equal, so the area of the two circles is ().

A, not sure B, must be unequal C, must be equal

4. The hour hand of a wall clock is 2.5 cm long, and the tip of this hour hand goes away overnight ()

a、 15.7cm b、3 1.4cm c、78.5cm。

As shown in the picture on the right, there are two roads from A to B.

Compared with the length of ().

A, the length of a road is b, and the length of b road is c, which is the same length.

Iv. Operation (12 points)

1. Draw all the symmetry axes in the figure below. (6 points)

Below is a rectangle, 4 cm long and 2 cm wide. Please draw a circle in this rectangle and calculate its area. (6 points)

Five, fill in the form (18 points)

Radius, diameter, perimeter and area of a circle.

1.5

18.84

Six, calculation (16 points)

1. Calculate the perimeter of the figure below. (8 points)

Seven, solve the problem (25 points)

1, a big clock, its minute hand is 40 cm long. How many centimeters does the tip of this minute hand move at a time?

2. The diameter of the front wheel of the road roller is 1.2m, and it is rolled 6 times per minute. How many meters can it advance per minute?

3. The circumference of a circular playground is 62.8 meters, but the radius increased by 1 meter when it was later expanded.

There is a cow tied with an 8-meter-long rope on the wide grass. How many square meters of grass can this cow eat at most?

As shown on the right, the circumference of a circle is 25.2 cm, and the area of the circle is exactly the same as that of the rectangle. How long is this rectangle?